I’m not sure if Mr. Piffles is an old dog, but Thursday at Stateside, he pulled off a few new tricks. The nearly-catatonic Chihuahua performs as the sidekick of Piff the Magic Dragon, a laconic hybrid of magician and comedian.

Are you looking for the oddity part of the Moontower Comedy and Oddity Festival? The duo (runners-up on NBC’s “America’s Got Talent”) qualifies. Both man …